CHIN CHING INDUSTRIAL CO., LTD/SCREW KING CO., LTD
We are the professional manufactory of various screws havebeen working in this field for many years in Taiwan.We are able to produce 304.302.305.316stainless drillingscrews, Bi-metal screws, and the drill bit dies of selfdrilling screws.Besides, we accept custom-made products. If you offerdrawing and specification detailed.